re-packing silencer?

[chrisd]

I failed to get on the track at Castle Combe today (103dB - 109dB with their suggested muffler!!) How, or where, do I re-pack the silencer with wadding as it seems to be lacking padding?

Any suggestions??

 

As a result of said failure, I ended up at Silverstone to watch the historic racing. Plenty of other 7's and a good atmosphere too, so not a total disaster

Chris

[Trevor Phillips]

I've just fitted a Custom Chrome Sound Barrier 8" exhaust behind the main one. It is adjustable and when closed drops the VX engine by 5db [and a lot of HP]. Fitted so I can get through SVA with an ex-Caterham Vauxhall Challenge car. We failed with a standard exhaust at 103bd at 4850rpm. Need to meet 103db.

[R500 CYA]

I have repacked a techcraft silencer recently for a Goodwood quiet day and reduced the noise by 5dB!

 

It's a simple enough job if you have a repackable system (sounds obvious I know).

 

Simply open up the silencer at the exhaust end, gasp in amazement that there appears to be nothing inside at all except a few black bits of old loft installation, and refill with exhaust wadding (£35 a box from DT) making sure you wear gloves (and long trousers I later discovered) as it itches like hell.

 

Instant result and no power loss!

 

If you have a non repackable silencer, I think you're probably screwed!

 

Nick

[peterg]

www.techcraft.co.uk sell a bag of Basalt wadding for £27 😬